Evolutionary Analysis (5th Edition)
5th Edition
ISBN: 9780321616678
Author: Jon C. Herron, Scott Freeman
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 1Q
What is the difference between
Expert Solution
Summary Introduction
To determine: The differences between genetic variation, environmental variation, and genotype-by-environment interaction.
Introduction: Genes are long thread-like structures that contain coded genetic information in the form of DNA. Deoxyribonucleic acid (DNA) is a double-stranded structure, and it is transferred from one generation to the next generation through successful reproduction.
Explanation of Solution
| Criteria | Genetic variation | Environmental variation | Genotype-by-environment interaction |
| Definition | The variations in an individual that occur due to differences in nucleotide sequence present in DNA result in genetic variation. | The variations or adaptations that occur in an individual due to changes in the environment or external surroundings are known as environmental variation. | This type of variation occurs due to difference in the response of two different genotypes to a common environmental variation. |
Expert Solution
Summary Introduction
To determine: An example for genetic variation, environmental variation, and genotype-by-environment interaction.
Explanation of Solution
| Criteria | Genetic variation | Environmental variation | Genotype-by-environment interaction |
| Example | Blood groups | Hair color and length of the hair. | Exposure of twins to sunlight resulting in different levels of tanning. |
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Students have asked these similar questions
Which of the following statements does NOT apply to the Hardy-Weinberg expression: p2 + 2pq + q2?
Group of answer choices
p2 is the frequency of individuals with the homozygous recessive genotype.
2pq is the frequency of individuals with the heterozygous genotype.
It can be used to determine the genotype and allele frequencies of the previous and the next generations.
Knowing either p2 or q2, you can calculate all the other frequencies
If 120 of 200 alleles are dominant alleles, then what percentage of the alleles are dominant alleles?
A-12%
B-40%
C-60%
D-120%
What percentage of the alleles are recessive alleles?
E-8%
F-40%
G-60%
H-80%
Which of the terms of the Hardy-Weinberg equations represents the frequency of the recessive allele in the gene pool?
A-p^2
B-p
C-2pq
D-q^2
In garden pea plants, the yellow seed colour (Y) is dominant over the green seed colour (y). In a population of 24 pea plants, 15 pea plants are homozygous dominant, 6 are heterozygous dominant, and 3 are recessive. Find the frequency of the following YY, Yy, yy. Show all work and record your response using three significant digits.
Chapter 5 Solutions
Evolutionary Analysis (5th Edition)
Ch. 5 - What is the difference between genetic variation,...Ch. 5 - We noted on the first page of the chapter that...Ch. 5 - Because you are studying different subjects, the...Ch. 5 - What are reaction norms, and why do they matter?...Ch. 5 - Consider the nucleotide sequence TGACTAACGGCT....Ch. 5 - Consider a population containing the following...Ch. 5 - How many redheads live in a village of 250 people,...Ch. 5 - Diagram two processes through which genes can be...Ch. 5 - If a gene gets retroduplicated, how can you...Ch. 5 - How do chromosome inversions happen? What...
Ch. 5 - Diagram the sequence of events that leads to the...Ch. 5 - Discuss factors that might cause mutation rates to...Ch. 5 - Which kind of mutation is most common: lethal,...Ch. 5 - Compare and contrast the evolutionary roles of...Ch. 5 - Suppose a silent mutation occurs in an exon that...Ch. 5 - The amino acid sequences encoded by the red and...Ch. 5 - Chromosome number can evolve by smaller-scale...
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